Why do some companies openly discriminate against women?

In the recruitment requirements, it is stipulated that dialects and constellations are required. In addition, the recruitment platform also publicly wrote the requirement that women are married and have children, or not less than 35 years old. I have also had the experience of looking for a job and met some "reasonable" requirements, such as the age limit mentioned above and the professional background required for non-professional positions. Compared with the excitement after this incident was exposed, I feel the same. In addition to anger, I also want to dig deeper: Where does the unscrupulous employment discrimination of the company come from?

Are you married? In fact, it depends on whether you have time to make money desperately for marriage and whether you have the courage. Single people are more willing to work overtime all night for married people. Do you have any kids？ In fact, I want to see if you will be late and leave early because of picking up the children. I will ask how old the children are to test whether migrant workers need more time to accompany them. How far do you live from the company? In fact, I want to see if you can adapt to the life of going out early and returning late under the normal overtime rhythm of the company. If you leave the company 1.5 hours or more, most people won't last long! If you are asked if you are willing to work overtime? Riding an ox and seeing a bear thinks that this kind of company should work overtime frequently. Migrant workers must ask when overtime will arrive at the latest, which determines whether to go home or sleep in the company.